Finding the Fourth Proportional to 38,854,061.97, 53,618,327.91 and 21,212,963.97
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Solution
The fourth proportional to 38,854,061.97, 53,618,327.91 and 21,212,963.97 is: 29,273,738.71
Step by Step Solution
- Step 1: Write the proportion equation
38,854,061.97 : 53,618,327.91 = 21,212,963.97 : x - Step 2: Convert to fraction form
38,854,061.97/53,618,327.91 = 21,212,963.97/x - Step 3: Cross multiply
38,854,061.97x = 53,618,327.91 × 21,212,963.97 - Step 4: Simplify right side
38,854,061.97x = 1,137,403,658,086,475.25 - Step 5: Solve for x
x = 1,137,403,658,086,475.25/38,854,061.97 - Step 6: Final answer
x = 29,273,738.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.